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Its only a valve. Topologically speaking, the passage from the mouth to the anus only constitutes one hole.
The passage of air into the lungs is not a hole however, that is a cavity. Same difference with the vagina, that's not a hole, that's a cavity.
People are donuts!
No, since you have a nose. Topologically, people have 3 holes.
7, if the cut-off is 60 microns (tear ducts). Smaller than that, we're essentially Swiss cheese.
Tbh, I was kinda hoping for someone with better biology knowledge than me to correct me. Thanks.
What are the the 7?
Important note, if you take a straw that separates into two split straws (kinda in a "Y" shape) that from a topological point of view is two holes, because one is for one of these paths, and the other is an extruded hole on the side of the first path. In topology you can't break or mend material, but you can pull, stretch, squeeze and move it all you want. So you can move one of the split straw "legs" to the bottom of the whole straw, getting a shape similar to a "V", it would look pretty much like a pair of pants. And topologically speaking it would be exactly the same. So... One straight hole for your mouth all the way down to your anus. Another two are there for your nostrils, that's 3 already. The rest are for your tear ducts, which have two holes on the edge of your eye, (so four in total) which merge and then connect to your nose.
So a human, from a topological perspective, is just a seven holed doughnut. Also Vsauce made a great video about that, with pretty great animations.
I am well aware that people have three topological holes. Matter of fact, I proved that years ago.
In this case, I only referred to one topological hole, from mouth to anus.
I never mentioned the nose, nor was that part of the topic in question.
Matter of fact, I proved that years ago.
Ominous
This fella explains it way better than I ever could..
Yum.
why is the nose only one hole?
Nose is two. Your butt isn’t one. Or rather, your mouth and nostrils would be the entrance and your butt is the combined exit of those three holes. If you don’t count the nostrils, you only have one hole. A hole always goes through something, otherwise it’s just a cavity. And also, holes only count from one side. Your butt and mouth are the same hole, just from different ends.
Kissing with open mouths creates a hole from one butthole to another.
Nose is only one hole homie, runs from one nostril to the other. It takes the mouth to add a secondary orifilce. And it takes the anus to add a third orifice.
Topology for ya.
Doesn’t matter which way you turn it, the result is the same. As you count it, your first hole is nostril to nostril. I count mouth to anus as hole one and then add the left and right nostrils as secondary and tertiary orifices. Having a nose ads two holes to the total count. If you had no nose, you‘d have one hole, if you only had a nose, you’d also only have one hole.
That reminds me, I need to turn my pizza soon..
oh! but then why is it three holes and not nostril-to-mouth as a hole and other-nostril-to-butt as another hole, or some other combination
Quick illustration:
Nostrils: ___________ _________ | _________| | _________ | Mouth: | | \________| | ________ | / | | | | | | | | | | | | Butthole:That is 3 holes in total because you can "connect" any opening with 3 different one's.
thank you!!
Nose is only one hole, topologically speaking. You can run a string from one nostril to the other.
One topological hole.
No, all 7 holes (nostrils, mouth, tear ducts) have a common cavity, so they're 7 holes not one.
This is a Wendy's. We only offer nostrils, mouths and anuses here.
You don't need that
Mmm
Depends on the state of your esophagus, doesn't it? If it's closed (which it mostly is) then your mouth and nose holes go to your lung cavity. Your anus is also part of a cavity that goes through your intestines all the way up your throat and stops at your esophagus.
No, the vagina is topologically a hole, as the uterus with the Fallopian tubes has two direct openings into the abdominal cavity (another objectionable "design" choice).